S&P Chinese equivalent

Hi r/stocks,

I'm a passive investor, usually just buying VOO/VTI for the long term and basically never selling (at least 10 years).
Im considering diversifying my portfolio with other markets so I considered Chinese or Asian markets in general. I read a bit online and my shortlist is AIA/GCX/WCHN. Anything else I should consider or anything more similar to VTI/VOO?

Thanks!